QuicktimeRacing
03-26-2006, 06:48 PM
Just wondering if anyone has ever put a 250R motor in a 400ex frame. I have an 85 250R 3 wheeler and a 99 400ex frame and was debating about attempting the swap. It looks like the rear swing arm will interchange but I wasn't sure what else would be involved as for items such as the radiator and what not. Anyone have more details on this? -Trent